Not sure how relevant this is, but we all have bacteria in our gut that help us digest things, and there are bacteria that can get energy from metals through oxidation, so maybe on Mirrodin people have that sort of bacteria in there gut.
Yeah! I forgot about those guys! They are actually used in the mining industry sometimes to help with the dissolution of ores during in-situ mining! You pump a solution containing the bacteria and various other chemicals into the ore deposit then the ore is dissolved and pumped back up to the surface from a separate location. After that, the metal is extracted from the solution using hydrometallurgy which basically means reacting and rereacting the compound until the pure metal precipitates out as a product. Cool!
but we do http://magiccards.info/query?q=o%3APlant&v=card&s=cname
thats all the plants in magic and in all setting except for mirrordin we know their is vegetation
"A wizard did it"
Edit: Of course, by flavor text and art we know that they have metal, but whose to say that chemistry in Magic is at all similar to the real world?
Yeah! I forgot about those guys! They are actually used in the mining industry sometimes to help with the dissolution of ores during in-situ mining! You pump a solution containing the bacteria and various other chemicals into the ore deposit then the ore is dissolved and pumped back up to the surface from a separate location. After that, the metal is extracted from the solution using hydrometallurgy which basically means reacting and rereacting the compound until the pure metal precipitates out as a product. Cool!
That's different.
That list is far from complete, and it contains three cards that are not plants (the Urzatron).
This is more accurate:
http://gatherer.wizards.com/Pages/Search/Default.aspx?type=+[Plant]+[Creature]||subtype=+[Plant]
Also, we do know of at least one edible organic vegetable on Mirrodin: Gelfruit.
As shown on Nourish
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Numquam evolutioni obstes. Solum conculceris.
Pascite draconem, evolvite aut morimini.